Improvement in filters



L. A. GOUOH.

FILTER.

No. 44,797. Patented 001;. 25, 1864.

' aw) I UNITED STATES PATENT OFFICE.

LYMAN A. eouen, or YonK-Er'ts, new YORK.

to the accompanying drawings, and to-the letters of reference markedthereon, in which- Figure 1 is a perspective view of my im-' provedfilter; Fig. 2, a sectional view of the same.

Like parts of the invention are designated by the same letters ofreference in the-draw ings.

The nature of my invention consists in the construction and operation ofan improved filter, as hereinafter described.

To enable others skilled inthe arts tomalre and use my invention, I willspeak of the construction and operation of the same.

A shows a cylinder, made of iron or any suitable metal, made concave atone end on its 1 inner side, asat B. 0 shows circular perfo-- l the nutsf upon the bolts 6 are tightened, by which means the filtering medium 1)is rated plates, of tin or any suitable metal, placed Within thecylinder A at a short dis-- tance from each end of the same, betweenwhich p ates (l the filtesing medium D, composed of fine or coarse sand,charcoal, pebbles, or any suitable substance or substances, iscontained. 6 shows small bolts inserted through the circular perforatedplates 0, and b:aring against the filtering medium D, the pressure ofsaid boltse upon the filtering medium D being regulated by the nuts fupon the bolts 6. F shows the main pipe, td' which the cylinder A isattached and with which it communicates by means of the branch pipes Gand H. I shows a discharge-cock inserted in the lower end of thecylinder A for the purpose of allowing any impurities that may collectin the cylinder to be drawn therefrom. J shows a cock placed upon thebranch pipe G, for the purpose hereinafter described. K is a cock uponthe main pipe F, and L is a cock upon the branch pipe H,for the purposehereinafter described.

My improved filter being thus constructed, its operation is as follows:The cock K upon the main pipe F is closed, and the cock J IMPROVEMENT lNFlLTERS.

Specification forming part of Letters Patent No. 44,797, dated October25, 1864.

- establishing communication between the cylinder A and main pipe F. Thewater may then be drawn 01f from the main pipe F.

When desired to cleanse'the cylinder A of any impurities that may havecollectedtherein, the cock J upon the branch pipe Gris closed and thecockKis opened, and the water travels up. the main pipe F and enters thecylinder A at its upper end through the b'ranch pipe Hymns down throughthe cylin der A, and is drawn ofl' therefrom with any impurities thatmay have collected in the same by'nreans of-tlie discharge-cock I.

The useor employment of the bolts 6, provided with the nuts 1, allowsthe filtering material D tobe adjusted to the pressure and quality ofthe water to pass through the same. If the water he exceedingly impurebrought more closely together.

The cylinderA, being made concave on its ,interior at one end,and toactas an air-chainlier, revents sounds and the bursting of .pipes yclosing the cooks suddenly against high pressure, which causes the pipesto vibrate from one part of the building-to the other. V

My improved filter is particularly intended for marshy sections of thecountry, and from its peculiar construction willbc found of advantage incleansing cistern-waten Having thus described my'invention, what 7 Iclaim therein as hem-and desireto secure by Letters Patent, is-- The cyi ider A construttedhs described, in combination with thefiltering-media D screws 6, bolts and perforatedplates O, for the purpise set forth.

A. SIDNEY Dorms, T. SPENCER.

